Among the fish, according to the habitat division, it can be divided into freshwater fish, marine fish, etc., but there is also a migratory fish, which migrates back and forth in both freshwater and marine habitats, accounting for less than 10% of the fish, and the pearl mullet is one of the migratory fish. In a freshwater lake in Van, Turkey, it was filmed (the shooting time is unknown): a large number of pearl mullets migrating, but also attracted a large number of seagulls to block predation, pearl mullet and seagulls fighting each other, is also a link in the food chain.
Around May of each year, it is also the season of pearl mullet, so a large number of pearl mullet migrate to freshwater lakes and return to their habitat to spawn, which is also the characteristic of migratory fish, which is only to find suitable external conditions and specific spawning places.
Mullet are migratory fish that prefer to live in shallow, inland bay or estuarine waters, and are generally 4-year-olds weighing 2 to 3 kg and reaching maturity, swimming to spawn in shallows or around islands.
In the food chain, the seagull is a medium-sized seabird, but also a fierce predator, in the seagull's diet there are fish, insects, birds that will also prey on other birds, young birds, etc., so when the lake is now a large number of pearl mullet migrating, it also attracts a large number of seagulls to block predation.
During the migration process, mullets will not only be preyed upon by birds such as seagulls, but also encounter other carnivores on land, and many carnivores will prey on mullet during their migration, in the process, many mullet will become prey for other animals.
Most pearl mullets will complete their migration process, and some pearl mullet will become the delicacies of predators such as seagulls, which is unavoidable in the food chain, but during the breeding season, there are still a large number of pearl mullets that migrate and will not retreat, which is also their instinctive behavior habit.
The migration of migratory fish is the typical, true migration of fish and is a basic property of this type of fish. If migratory fish cannot complete this migration or their migration is obstructed, the life cycle of these fish will be destroyed and affect the proliferation of the population, even endangering the survival of the species!
Pay attention to the six dimensions of nature And let nature know nature!